
Whoisology
WebCargo
WhoisThisDomain
Bulk Whois API
Active Whois Browser
JSON WHOIS API
JsonWhois
WhoAPI is an API service for mass requests of domain information like domain registration availability and structured whois data in JSON.

Managed Hosting for developers, entrepreneurs, and businesses like yours
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | whoapi.com | opalstack.com |
| Pricing | ||
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of WhoAPI yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using WhoAPI and Opalstack. For example, how are they different and which one is better?
When comparing WhoAPI and Opalstack, you can also consider the following products.

Connected database of whois records and whois history
Compare Whoisology to WhoAPI or Opalstack:

Optimize your workflow by offloading it to us. Useful API's with seamless integration that scale to your needs.
Compare WebCargo to WhoAPI or Opalstack:

Domain name lookup tool that allows you to get information about domain registration from WHOIS server.
Compare WhoisThisDomain to WhoAPI or Opalstack:

Bulk Whois API is a provider of parsed WHOIS data in JSON with simple API, competitive pricing, top notch support, and more.
Compare Bulk Whois API to WhoAPI or Opalstack:

Browse all information for an IP address or domain name with a single click!
Compare Active Whois Browser to WhoAPI or Opalstack:

Parsed domain WHOIS data from any WHOIS server via RESTful API with metered pay as you pricing.
Compare JSON WHOIS API to WhoAPI or Opalstack: